./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:40:27,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:40:27,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:40:27,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:40:27,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:40:27,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:40:27,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:40:27,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:40:27,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:40:27,248 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:40:27,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:40:27,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:40:27,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:40:27,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:40:27,250 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:40:27,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:40:27,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:40:27,251 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:40:27,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:40:27,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:40:27,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:40:27,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:40:27,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:40:27,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:40:27,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:40:27,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:40:27,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:40:27,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:40:27,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:40:27,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:40:27,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:40:27,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:40:27,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:27,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:40:27,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:40:27,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:40:27,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:40:27,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:40:27,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:40:27,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:40:27,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:40:27,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:40:27,267 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 [2024-10-11 00:40:27,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:40:27,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:40:27,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:40:27,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:40:27,566 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:40:27,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2024-10-11 00:40:29,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:40:29,254 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:40:29,255 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2024-10-11 00:40:29,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0cf6cc9a5/a7b54ef5cebb460d84a7878bddd6d9c1/FLAG749471bf7 [2024-10-11 00:40:29,282 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0cf6cc9a5/a7b54ef5cebb460d84a7878bddd6d9c1 [2024-10-11 00:40:29,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:40:29,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:40:29,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:29,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:40:29,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:40:29,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@885e0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29, skipping insertion in model container [2024-10-11 00:40:29,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:40:29,570 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2024-10-11 00:40:29,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:29,582 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:40:29,628 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2024-10-11 00:40:29,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:29,647 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:40:29,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29 WrapperNode [2024-10-11 00:40:29,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:29,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:29,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:40:29,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:40:29,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,710 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 462 [2024-10-11 00:40:29,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:29,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:40:29,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:40:29,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:40:29,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,737 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,760 INFO L175 MemorySlicer]: Split 21 memory accesses to 7 slices as follows [2, 3, 3, 5, 3, 3, 2]. 24 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0, 0]. The 7 writes are split as follows [0, 2, 2, 0, 1, 1, 1]. [2024-10-11 00:40:29,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:40:29,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:40:29,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:40:29,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:40:29,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (1/1) ... [2024-10-11 00:40:29,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:29,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:40:29,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:40:29,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:40:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:40:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:40:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 00:40:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 00:40:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 00:40:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 00:40:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 00:40:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 00:40:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:40:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 00:40:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 00:40:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 00:40:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 00:40:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 00:40:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-11 00:40:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-11 00:40:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:40:29,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 00:40:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 00:40:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 00:40:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 00:40:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 00:40:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-11 00:40:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-11 00:40:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-11 00:40:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-11 00:40:29,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-11 00:40:29,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-11 00:40:29,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-11 00:40:29,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:40:30,051 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:40:30,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:40:30,777 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-10-11 00:40:30,778 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:40:30,810 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:40:30,812 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 00:40:30,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:30 BoogieIcfgContainer [2024-10-11 00:40:30,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:40:30,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:40:30,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:40:30,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:40:30,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:40:29" (1/3) ... [2024-10-11 00:40:30,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157799d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:30, skipping insertion in model container [2024-10-11 00:40:30,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:29" (2/3) ... [2024-10-11 00:40:30,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157799d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:30, skipping insertion in model container [2024-10-11 00:40:30,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:30" (3/3) ... [2024-10-11 00:40:30,822 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2024-10-11 00:40:30,840 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:40:30,840 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:40:30,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:40:30,913 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33a37d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:40:30,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:40:30,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.6413793103448275) internal successors, (238), 146 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-11 00:40:30,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:30,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:30,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:30,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:30,935 INFO L85 PathProgramCache]: Analyzing trace with hash 75827952, now seen corresponding path program 1 times [2024-10-11 00:40:30,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:40:30,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561796058] [2024-10-11 00:40:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:40:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:31,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:40:31,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561796058] [2024-10-11 00:40:31,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561796058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:31,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:31,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:40:31,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877179654] [2024-10-11 00:40:31,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:31,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:40:31,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:40:31,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:40:31,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:31,168 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.6413793103448275) internal successors, (238), 146 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:31,229 INFO L93 Difference]: Finished difference Result 292 states and 473 transitions. [2024-10-11 00:40:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:40:31,232 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-11 00:40:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:31,241 INFO L225 Difference]: With dead ends: 292 [2024-10-11 00:40:31,242 INFO L226 Difference]: Without dead ends: 144 [2024-10-11 00:40:31,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:31,250 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:31,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:40:31,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-10-11 00:40:31,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-10-11 00:40:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.5034965034965035) internal successors, (215), 143 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 215 transitions. [2024-10-11 00:40:31,306 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 215 transitions. Word has length 15 [2024-10-11 00:40:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:31,307 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 215 transitions. [2024-10-11 00:40:31,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 215 transitions. [2024-10-11 00:40:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 00:40:31,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:31,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:31,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:40:31,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:31,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:31,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1492423181, now seen corresponding path program 1 times [2024-10-11 00:40:31,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:40:31,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92860078] [2024-10-11 00:40:31,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:31,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:40:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:40:31,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:40:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:40:31,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:40:31,498 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:40:31,499 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:40:31,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 00:40:31,504 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 00:40:31,536 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:40:31,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:40:31 BoogieIcfgContainer [2024-10-11 00:40:31,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:40:31,545 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:40:31,545 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:40:31,545 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:40:31,546 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:30" (3/4) ... [2024-10-11 00:40:31,549 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:40:31,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:40:31,551 INFO L158 Benchmark]: Toolchain (without parser) took 2264.51ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 112.6MB in the beginning and 128.2MB in the end (delta: -15.6MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2024-10-11 00:40:31,552 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:31,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.27ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 95.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 00:40:31,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.40ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 92.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:40:31,553 INFO L158 Benchmark]: Boogie Preprocessor took 108.06ms. Allocated memory is still 167.8MB. Free memory was 92.1MB in the beginning and 87.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:40:31,553 INFO L158 Benchmark]: RCFGBuilder took 992.01ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 87.4MB in the beginning and 165.9MB in the end (delta: -78.5MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2024-10-11 00:40:31,554 INFO L158 Benchmark]: TraceAbstraction took 728.27ms. Allocated memory is still 222.3MB. Free memory was 164.9MB in the beginning and 128.2MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-11 00:40:31,554 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 222.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:31,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.27ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 95.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.40ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 92.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.06ms. Allocated memory is still 167.8MB. Free memory was 92.1MB in the beginning and 87.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 992.01ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 87.4MB in the beginning and 165.9MB in the end (delta: -78.5MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * TraceAbstraction took 728.27ms. Allocated memory is still 222.3MB. Free memory was 164.9MB in the beginning and 128.2MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 222.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 193]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [Zero_fmod={4:0}, one_fmod=1, x=0, y=4294967311] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, hx=0, hy=-2147483648, lx=4294967297, ly=0, one_fmod=1, sx=0, x=0, y=4294967311] [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=0, y=4294967311] [L45] EXPR hy | ly VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=0, y=4294967311] [L45-L46] (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=0, y=4294967311] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=0, y=4294967311] [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [Zero_fmod={4:0}, one_fmod=1, res=4294967310] [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [Zero_fmod={4:0}, one_fmod=1] [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=4294967310] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 212 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 212 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 00:40:31,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:40:33,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:40:33,935 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:40:33,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:40:33,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:40:33,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:40:33,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:40:33,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:40:33,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:40:33,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:40:33,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:40:33,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:40:33,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:40:33,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:40:33,989 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:40:33,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:40:33,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:40:33,989 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:40:33,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:40:33,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:40:33,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:40:33,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:40:33,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:40:33,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:40:33,995 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:40:33,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:40:33,995 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:40:33,995 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:40:33,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:40:33,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:40:33,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:40:33,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:40:33,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:40:33,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:40:33,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:33,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:40:33,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:40:33,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:40:33,998 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:40:33,998 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:40:34,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:40:34,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:40:34,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:40:34,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:40:34,002 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:40:34,002 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 [2024-10-11 00:40:34,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:40:34,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:40:34,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:40:34,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:40:34,338 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:40:34,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2024-10-11 00:40:35,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:40:36,098 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:40:36,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2024-10-11 00:40:36,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c4ff2699/3b081ef88dc54deeaae3d63be9cbbd4d/FLAG31700dcd5 [2024-10-11 00:40:36,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c4ff2699/3b081ef88dc54deeaae3d63be9cbbd4d [2024-10-11 00:40:36,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:40:36,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:40:36,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:36,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:40:36,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:40:36,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9584c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36, skipping insertion in model container [2024-10-11 00:40:36,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:40:36,461 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2024-10-11 00:40:36,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:36,487 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:40:36,526 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2024-10-11 00:40:36,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:36,555 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:40:36,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36 WrapperNode [2024-10-11 00:40:36,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:36,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:36,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:40:36,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:40:36,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,638 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 248 [2024-10-11 00:40:36,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:36,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:40:36,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:40:36,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:40:36,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,690 INFO L175 MemorySlicer]: Split 21 memory accesses to 7 slices as follows [2, 3, 5, 3, 3, 3, 2]. 24 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 0, 2, 1, 1, 1]. [2024-10-11 00:40:36,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:40:36,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:40:36,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:40:36,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:40:36,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (1/1) ... [2024-10-11 00:40:36,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:36,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:40:36,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:40:36,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:40:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:40:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-11 00:40:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-11 00:40:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-11 00:40:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-11 00:40:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-10-11 00:40:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-10-11 00:40:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-10-11 00:40:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-11 00:40:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-11 00:40:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-11 00:40:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-11 00:40:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-10-11 00:40:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-10-11 00:40:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-10-11 00:40:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:40:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 00:40:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 00:40:36,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-11 00:40:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-11 00:40:36,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-11 00:40:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-11 00:40:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:40:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-10-11 00:40:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-10-11 00:40:36,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-10-11 00:40:36,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-10-11 00:40:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-10-11 00:40:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-10-11 00:40:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-10-11 00:40:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 00:40:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 00:40:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 00:40:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-11 00:40:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-11 00:40:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-11 00:40:36,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-11 00:40:36,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:40:36,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:40:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 00:40:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 00:40:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 00:40:36,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-11 00:40:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-11 00:40:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-11 00:40:36,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-11 00:40:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:40:36,994 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:40:36,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:40:43,045 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-10-11 00:40:43,045 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:40:43,089 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:40:43,089 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 00:40:43,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:43 BoogieIcfgContainer [2024-10-11 00:40:43,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:40:43,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:40:43,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:40:43,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:40:43,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:40:36" (1/3) ... [2024-10-11 00:40:43,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61505852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:43, skipping insertion in model container [2024-10-11 00:40:43,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:36" (2/3) ... [2024-10-11 00:40:43,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61505852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:43, skipping insertion in model container [2024-10-11 00:40:43,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:43" (3/3) ... [2024-10-11 00:40:43,098 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2024-10-11 00:40:43,115 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:40:43,115 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:40:43,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:40:43,177 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d3e0b4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:40:43,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:40:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 53 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 00:40:43,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:43,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:43,191 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:43,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:43,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1678811621, now seen corresponding path program 1 times [2024-10-11 00:40:43,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:40:43,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068727390] [2024-10-11 00:40:43,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:43,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:40:43,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:40:43,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:40:43,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 00:40:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:44,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 00:40:44,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:40:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:44,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:40:44,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:40:44,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068727390] [2024-10-11 00:40:44,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068727390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:44,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:44,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:40:44,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79991629] [2024-10-11 00:40:44,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:44,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:40:44,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:40:44,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:40:44,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:44,158 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 53 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:44,343 INFO L93 Difference]: Finished difference Result 106 states and 195 transitions. [2024-10-11 00:40:44,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:40:44,346 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-11 00:40:44,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:44,354 INFO L225 Difference]: With dead ends: 106 [2024-10-11 00:40:44,355 INFO L226 Difference]: Without dead ends: 51 [2024-10-11 00:40:44,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:44,363 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:44,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 00:40:44,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-11 00:40:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-10-11 00:40:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.56) internal successors, (78), 50 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:44,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 78 transitions. [2024-10-11 00:40:44,403 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 78 transitions. Word has length 10 [2024-10-11 00:40:44,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:44,403 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 78 transitions. [2024-10-11 00:40:44,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:40:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2024-10-11 00:40:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 00:40:44,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:44,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:44,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-11 00:40:44,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:40:44,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:44,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash 42762306, now seen corresponding path program 1 times [2024-10-11 00:40:44,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:40:44,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637164401] [2024-10-11 00:40:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:44,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:40:44,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:40:44,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:40:44,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 00:40:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:45,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 00:40:45,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:40:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:56,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:40:56,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:40:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637164401] [2024-10-11 00:40:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637164401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:56,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:56,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 00:40:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149760819] [2024-10-11 00:40:56,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:56,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 00:40:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:40:56,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 00:40:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=29, Unknown=2, NotChecked=0, Total=42 [2024-10-11 00:40:56,958 INFO L87 Difference]: Start difference. First operand 51 states and 78 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:41:02,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:15,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:19,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:23,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:25,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:29,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:33,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:37,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:41,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:45,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:49,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:53,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:41:57,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:42:01,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-10-11 00:42:05,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]